what happens if you move bad temperatur on top of the group?
i’m having a similar issues with the sorting of “larger” devices.
i am sorting these mostly at the top and then “fill” the spaces with smaller ones beneath.
try to change the position of the devices.

@Barny yes i understand and i wished we would have a better solution at the moment.still the question for another easy to install frontend is to be solved.
well you can try to use the angular-material-frontend plugin to see what happens with this one.